Perhaps you should try some spelling variations:
doanh doanh » toan doanh, doanh hoan, doanh thanh
khien bang » phien ban, khien dong
hien sang » hien trang, chieu sang, thien bang
doanh cam » doanh cao, doanh chau, doanh tai
nang cong » nang song, dang cong, bang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan ban » van ban

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((hien sang) OR (khien bang)) - doanh doanh cam nang cong dan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((hien sang) OR (khien bang)) - doanh doanh cam nang cong dan toan ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((hien sang) OR (khien bang)) - doanh doanh cam nang cong dan toan ban*.